/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */
package xml.timgiayto.controller;

import java.io.IOException;
import java.io.PrintWriter;
import java.util.List;
import javax.servlet.RequestDispatcher;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;
import xml.timgiayto.binding.comment.InfoComments;
import xml.timgiayto.utils.CommonUtils;
import xml.timgiayto.utils.XMLTools;
import xml.timgiayto.binding.info.Informations;
import xml.timgiayto.utils.DBUtils;

/**
 *
 * @author mrnghiep
 */
public class InfoController extends HttpServlet {

    /** 
     * Processes requests for both HTTP <code>GET</code> and <code>POST</code> methods.
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    protected void processRequest(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        response.setContentType("text/html;charset=UTF-8");
        PrintWriter out = response.getWriter();
        try {
            String action = request.getParameter("action");
            if ("marshall".equals(action)) {
                // Get currentURL from page
                String currentUrl = request.getParameter("currentUrl");

                // Get list informations from database
                List<Informations> informations = DBUtils.getInformations();
                // Get Comments from database
                InfoComments infoComments = DBUtils.getComments();

                // Get contextPath
                String contextPath = getServletContext().getRealPath("/");

                // Call function marshallXML to create file XML.
                XMLTools.marshallXML(informations.get(0), contextPath + CommonUtils.INFORMATION_PATH);
                XMLTools.marshallXML(informations.get(1), contextPath + CommonUtils.INFORMATION_CONVERT_PATH);
                // Call function marshallXMLComment to create file XML.
                XMLTools.marshallXML(infoComments, contextPath + CommonUtils.COMMENT_PATH);

                // Create session to check xml file is exist
                HttpSession session = request.getSession();
                session.setAttribute("CHECKEXISTXML", true);

                RequestDispatcher rd = request.getRequestDispatcher(currentUrl);
                rd.forward(request, response);
            }
        } finally {
            out.close();
        }
    }

    // <editor-fold defaultstate="collapsed" desc="HttpServlet methods. Click on the + sign on the left to edit the code.">
    /** 
     * Handles the HTTP <code>GET</code> method.
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doGet(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        processRequest(request, response);
    }

    /** 
     * Handles the HTTP <code>POST</code> method.
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doPost(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        processRequest(request, response);
    }

    /** 
     * Returns a short description of the servlet.
     * @return a String containing servlet description
     */
    @Override
    public String getServletInfo() {
        return "Short description";
    }// </editor-fold>
}
